YearPToutPBase 100
201195.86%100
201296.36%100.3
201397.76%100.7
201496.73%101
201598.87%101.3
201698.73%101.7
2017100%102
201898.34%102.4
201997.91%102.7
202099.22%103
Evolution : 3 % entre 2011 et 2020 soit 0.30 % de gain par an.